Dump-car.



A. CAMPBELL.

DUMP'GAR.

APPLICATION FILED JAN. 18, 1909.

v A. CAMPBELL.

:DUMP UAR.

.APPLIOATIDN FILED JAN. 18, 1909. 937,417. Patented Oct. 19,1909.

3 SHEETS-SHEET 2.

A. CAMPBELL.

DUMP GAR. v APPLICATION FILED JAN. 18, 1809. 937,417. Patented Oct.19,1909.

3 SHEETS-SHEET 3.

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UNTTED sTATEs PATENT EErc.

ARGYLE CAMPBELL, OF CI-IICAGO, ILLINOIS, ASSIGNOE. TO ENTERPRISE RAILWAYEQUIPMENT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

DUMP-CAR.

Patented oct. 19, 1909.

Application filed January 18, 1909,' Seriall No. 472,785.

To all whom it may concern:

Be it known that I, ARGYLE CAMPBELL, a citizen of the United States,residing in Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Dump-Cars, of which thefollowing is a speciication. i

My invention relates to improvements in dump cars.

The object of my invention is to provide an improved construction ofdump car in which the discharge opening of the car body may be ofgreater extent both transversely and longitudinally than the clear spacebetween the car wheels.

My invention consists in the means I employ to practically accomplishthis object or result. That is to say, it consists in connection with adump car body having a dis-V charge opening of greater eXtent'bot-hlongitudinally and transversely than the clear space between the carwheels, of two main doors hinged at their outer longitudinal edges at ornear the sides of the car and adapted to partially close the dischargeopening, in combination with two supplemental doors, one of saidsupplemental doors being carried by and hinged to one of said main doorsat its longitudinal inner edge, and the other of said supplementaldoors'being carried by and hinged to the other of said main doors at itslongitudinal inner edge.

My invention further consists in the novel construction of parts anddevices and in the novel combinations of parts and devices herein shownand described and more particularly specified in the claims.

In the accompanying drawing forming a part of this specification, Figure1 is a side elevation of a dump car embodying my invention. Fig. 2 is avertical cross section on line 2 2 of Fig. 1 and 3 is a plan view.

In the drawing 1 represents a dump car having a body 2, furnished withinclined ends 3 and sides t, constituting a hopper shaped bottom for thecar. The body of the dump car has a discharge opening 5 of greaterextent both longitudinally and trans versely than the clear spacebetween the car wheels 6, and .this opening is closed in part by twomain or side doors 7, 7, each hinged at its longitudinal edge at 8 tothe car body at or near the side thereof, and each of these main or sidedoors 7 is furnished with a supplemental or inner door 9 carried therebyand hinged thereto at its inner edge by suitable hinges l0, the twosupplemental doors closing the remaining portion of the dischargeopening. v

The opening movement of the two main doors 7, 7, as they are each ofgreater length than the clear space between the car wheels, and as theyare hinged to the car body near the upright sides 10A thereof, and thusover the car wheels, is necessarily restricted or limited by the carwheels. The two inner or supplemental doors 9, 9 which are hinged attheir outer longitudinal edges to the inner longitudinal edges of themain doors are, however, adapted to open down vertically, and thus toenable the load to be readily and fully discharged as the innerlongitudinal edges of the main doors 7, 7 when opened, project over orwithin the inner faces of the car wheels; so that the car wheels thuscannot interfere with the full opening of the two inner or supplementaldoors 9, 9. The main doors 7, 7 carrying the supplemental doors 9, 9hinged thereto and said supplemental doors may be operated by anysuitable door operating mechanism.

The door operating mechanism which I prefer to employ consists of anoperating shaft 11, having a polygonal winding drum 12 thereon, inconnection with links 13 adapted to wind around said drum and con*nections 14, 15, 16, 17, 18 extending therefrom to the inner edges ofthe two main doors 7, 7, and to the inner edges of the two supplementaldoors 9, 9 over suitable pulleys 19, 20.

I claim zh 1. In a dump car, the combination with a car body having adischarge opening of greater extent both longitudinally and trans-`versely than the clear space between the car wheels, of a pair of maindoors, each of greater length than the clear space between the carwheels, and each hinged at its longitudinal outer edge to the car bodynear the eide thereof, each of said main doors carrying a supplementaldoor hinged thereto at its inner edge, substantially as specified.

2. In a dump car, the combination with a car body having a dischargeopening of greater extent both longitudinally and transversely than theclear space between the car wheels, of a pair of main doors, each ofgreater length than the clear space between the ear Wheels, and eachhinged at its longitudnal outer edge to the car body near the sidethereof, each of said main doors carrying a supplemental door hingedthereto at its inner edge, and door operating mechan ism for opening andclosing' said doors, substantially as speciied.

3. In a dump car, the combination with a car body having a dischargeopening of greater extent both 'transversely and longitudinally than theclear space between the car Wheels, of a pair of main doors hinged attheir outer edges to the car body at opposite parallel edges or' saiddischarge opening', and each carrying a supplemental door hinged theretoat the inner edge of said main door7 substantially as specified.

4. ln a dump car, the combination with a `ear body having a dischargeopening of car wheels, of a pair of main doors hinged at their outeredges to the car body at opposite parallel edges of said dischargeopening, and each carrying a supplemental door hinged thereto at theinner edge of said main door, an operating shaft, a Winding drum andconnections extending therefrom to the inner edges of both said maindoors and to the inner edges of both of said supplemental doors carriedby said main doors, substantially as specified.

ARGYLE CAMPBELL. lVitnesses H. M. MUNDAY, PEARL Amants.

